You probably already have your costume prepped and your party plans scheduled, now that Halloween is finally here .

But will you have to cover your KPop Demon Hunters outfit with a puffy coat? Or pack an umbrella in your pillowcase?

Here's the forecast for the major cities across Illinois, according to the National Weather Service .

Chicago Halloween weather forecast

Partly cloudy with a high of 52-57 during the day, and a few light showers in the evening with a low around 33-41. Temperatures will be in the low 50s around 4 p.m. and in the mid 40s around 8 p.m., according to the NWS.

Peoria Halloween weather forecast

Mostly sunny during the day with a high near 59 and up to 20 mph winds. Partly cloudy in the evening with a low around 35 and 3-6 mph winds.

Rockford Halloween

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